Mic amp idea

[Gus]

Who said I am indignant?

Can't I have some fun?

 

[solder_city]

you have a very terse style of writing, maybe use some smileys or something. otherwise it comes across like your pissed off.

 

[CJ]

i'm ok, your ok.
just take the absolute value of the posts.

 

[hitchhiker]

for reference...

http://www.agilityq.com/gtam62

BTW, GT sent me this for a 6tm that had a problem, they are the same other than a couple of the cap values.

 

[northsiderap]

Here is another interesting reference concerning mic circuits... Try a search, some come with schematics as well.

LINK

 

[northsiderap]

And of course the US site is so bogged down with red tape it's hard to find a lot right away, but nonetheless:

http://www.uspto.gov/index.html

 

[Marik]

"In a gooseneck condenser microphone in which a condenser microphone unit is supported via a support pipe including a flexible pipe, the shield in a flexible pipe part is enhanced. In the condenser microphone including the condenser microphone unit and an output module section provided with a circuit board for outputting audio signals in a shield case, the condenser microphone unit being supported on the output module section via the support pipe including the flexible pipe, and the condenser microphone unit being connected electrically to the circuit board via a microphone cable 40 having a shield covering line 43, which is inserted in the support pipe, at least in a part of the microphone cable 40, which part being installed in the flexible pipe 31, 32, the shield covering line 43 is exposed, and the part of the microphone cable 40, which part being installed in the flexible pipe 31, 32, is brought into contact with the flexible pipe 31, 32 at many points."

 

[Marik]

It is quite exciting! Should I go further?

 

[northsiderap]

Smartass - - I can tell it's difficult for you, but it's really worth it to read more than one or two entries.

Do you see the 'search' button in the upper left?


If you thought that was bad you should check out this guy's page: His last name even has 'Fuk' in it :razz:

I have built (without counting prototypes) at least a dozen ribbon microphones of different configurations--Figure 8, cardioid, omni, hypbrid; using different magnets, different signal paths between front and rear of the ribbon, etc.

How about this then:
http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB1236007&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=US6434252&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=JP60121900&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB1233457&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB1027102&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB986390&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB859031&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB742006&F=0

http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=GB641897&F=0

 

[Marik]

Sorry, I was little too drunk last night and definitely could not see a search botton.

But are your personal insulting remarks that necessary?
I won't reduce myself to going into that.

 

[northsiderap]

[quote author="Marik"][quote author="Marik"]Sorry, I was little too drunk last night and definitely could not see a search botton.

But are your personal insulting remarks that necessary?
I won't reduce myself to going into that.[/quote][/quote]

I don't have the time or the energy to put up with 'rude.' I usually make some sarcastic half-serious remark and then start ignoring the person.

Get yourself a couple of cups of dark coffee and try reading it again.

More relevant to this thread:

LINK

 

[Marik]

[quote author="northsiderap"]
I usually make some sarcastic half-serious remark and then start ignoring the person.
[/quote]

You remarks were much more than sarcastic.
Anyway, I said sorry, you chose not to. Fine with me, it speaks for itself.

And BTW, thanks for the effort of compiling ribbon patents. If you did it for me, there was no real need, as I read and knew all of them (and much more than that) for quite some time.

Just wondering what is bad with the fact that I have built already over a dozen microphones of different configurations.

 

[Larrchild]

Voiceman: The red zone has always been for loading and unloading
there is never stopping in a white zone.
Voicelady: Don't tell me which zone is for stopping and which zone
is for loading.
Voiceman: Listen Betty, don't start up with your white zone shit
again!

 

[northsiderap]

Marik:

A) I'm sorry if I hurt your feelings. You hurt mine first, but that doesn't make the retaliation any more justified.

B) Don't engineer drunk. It comes out wrong.

C) There's nothing wrong with your ribbon mics. I make condensers. I'm just as much of a nerd as you. :guinness: (drink to that!)

D) :razz: This face means 'razz,' which also means 'tease.' I do a lot of teasing. But: A joke is no longer a joke if someone gets hurt.

7) If you promise not to post really drunk other than in the Brewery, I promise not to get annoyed.

F) I've tried posting drunk, and am always annoyed at myself the next day.

34) Keep up the good work. You've always been up there on my list of most-respected prototypers that I've seen on the forums. Don't let that change, please.

:guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness:

The Show Must Go On! On With The Show!

 

[analag]

Are we squabbling...don't make me have to tighten yo asses up

Anyway guys it's all love here. Hey Northside, sometimes the new guys get a little initiation roughing up when the old members realise you're a new guy with some skills and confidence behind it. For example I'm here almost a year now but I'm still on the outside looking at the inner click. Some still feel bruised about my abrasive entrance, so treat them nice or you'll never get completely welcomed like me?

analag

 

[Marik]

[quote author="northsiderap"]

7) If you promise not to post really drunk...
[/quote]

Yeah, I know. The problem is that I don't know it when drunk .

PEACE
:guinness: :guinness: :guinness: :guinness: :guinness: :guinness: :guinness:

[quote author="hitchhiker"]for reference...

http://www.agilityq.com/gtam62

[/quote]

Sometimes I am wondering why engineers make one or another decision.
Looking at this schematics I am wondering why the plate resistor is so low.
Also, the attenuation switch closes feedback loop, so the sound with pad engaged will definitely change drastically.
Why would not they just put a usual cap in parallel with capsule? Not that it does not change the sound, but not to such degree. In light of Dan Lavry's recent paper, it might be a good thing.

 

[Mohan Varkey]

New York Dave, I like your circuit posted on March 06. This topology resembles my line level preamp (for high end audio) that I have been making for some years. It is worth further exploration.

If we can have equal load resistors (read equal quiescent currents) for the cathode follower as well as the grounded grid stages, then THD will be minimal. A prerequisite for optimising the performance of this topology is its thirst for high current. This need not necessarily translate into high voltages. Low voltage high transconductance tubes will work nicely. This now restricts us to only a handful of tubes. My line level preamp uses 417A/5842. These tubes are very very microphonic and definitely not suitable for mic pre. Perhaps you could consider 6HA5. The handicap here is that these are all single triodes. Perhaps someone else in this forum can come up with a high transconductance, high mu, low microphonic twin triode.

By the way, I joined this excellent forum to learn the latest thinking on mic preamps for studio recording. More than one church group have been asking me for sometime to consider making valve mic preamps for their studios.

Regards,
Mohan Varkey

 

[analag]

[quote author="Mohan Varkey"]By the way, I joined this excellent forum to learn the latest thinking on mic preamps for studio recording. More than one church group have been asking me for sometime to consider making valve mic preamps for their studios.

Regards,
Mohan Varkey[/quote]

Oh really? And how much are we gonna get out of it.

analag

 

[NewYorkDave]

So, I got my 7-pin XLRs today (thanks, J!). Is there a standard pinout that's usually followed with these? It looks like pin 7 must be used for chassis since it's tied to the shell, but other than that, I don't know. If there is a standard (de facto or otherwise), I'd like to stick to it. A link to a schematic will do nicely if you don't feel like typing it all out. Thanks.

 

[Marik]

[quote author="NewYorkDave"]Is there a standard pinout that's usually followed with these? [/quote]

Not that I know of, it seems they do whatever they want. Some PSU's have different pinouts even from the same manufacturer. Just don't stick B+ to pin 7.

Edit: just checked my Neutriks and pin 7 is not tied. Untie damn thing and stick B+ right there.